Arctic Sea Ice Levels
Arctic sea ice has been much slower to melt this spring than in the last 10 years, the result of temperatures being closer to the 1981 to 2010 average than the record warmth mainly experienced this century.
Ice coverage in May was almost 5 million square miles, with Hudson Bay, the Beaufort Sea, waters of Arctic Canada and the eastern Siberian Sea still mainly frozen at a time when the ice should have been melting. While the June 1 sea ice extent was the highest of the last nine years, it was still 16,000 square miles lower than the 1981 to 2010 average and the 16th lowest ever recorded for the date.
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